From mboxrd@z Thu Jan  1 00:00:00 1970
From: Srinivas Eeda <srinivas.eeda@oracle.com>
Date: Mon, 24 May 2010 21:54:18 -0700
Subject: [Ocfs2-devel] [PATCH 1/1] ocfs2/dlm: resend deref to new master
 if recovery occures
In-Reply-To: <20100525025004.GB9173@laptop.us.oracle.com>
References: <4BFAD7F4.3000705@oracle.com>
	<20100525020114.GA9173@laptop.us.oracle.com>
	<20100525025004.GB9173@laptop.us.oracle.com>
Message-ID: <4BFB57FA.3090503@oracle.com>
List-Id: <ocfs2-devel.oss.oracle.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: ocfs2-devel@oss.oracle.com

On 5/24/2010 7:50 PM, Wengang Wang wrote:
>>> delay deref message if DLM_LOCK_RES_RECOVERING is set (which means
>>> recovery got to the lockres before dlm_thread could), move the
>>> lockres to the end of the purgelist and retry later.
>>>       
>
> If you meant checking before sending DEREF, it could cause a high cpu
> useage when there are only the ones in recovery left in the purge list
> until they are recovered. --Is that acceptable?
>   
Yea, you are right about the cpu usage. I think the right thing would be 
to exit the loop after all locks are traversed once.
> regards,
> wengang.
>   
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://oss.oracle.com/pipermail/ocfs2-devel/attachments/20100524/d283fc49/attachment.html